[Errata] At 00:18:50, there is actually only one pair of TCP connections, and collisions are managed this way.
At 00:53:51, it is obviously "classful" and not "stackful".
Routes on slides 58 should be 2001:913:2a::/64 via ppp0and2001:913:2b:1::/56 via 2001:913:2a::1, on the router which hosts ppp0.

[Errata] A main mistake slipped at 00:02:15: there were 128 class A instead of 256 (7 bits with the static zero bit).
Another important mistake occured at 00:37:26: we could made 16 POP /40 instead of 256 (24 = 16).

Présentation de la Brique Internet — Internet Cube
At World Social Forum (2015), Tunisia, Tunis.
On Website of the Internet Cube Project (2015).Subtitles in English and French are available.
Video Record (00:07:36, WEBM):